N,N'-Diphenyl-p-phenylenediamine (DPPD) from Mexico
N,N'-Diphenyl-p-phenylenediamine functions as an antiozonant in tire rubber compounds. Classified under HTS 2921.59.80.90 as aromatic polyamine derivative with N-substitution. Secondary amine functionality provides oxidation resistance.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Tire industry specifications require >96% assay confirmation
• Melting point range documentation verifies isomer identity
• Prevent aggregation by specifying non-dusted transport conditions